Upload an audio file, shift its pitch up or down by semitones, and keep the exact same tempo. Preview the result instantly and download it as a WAV.
Set a shift amount and press Apply pitch shift.
Your audio file is decoded and processed locally. Nothing is uploaded to a server.
The granular pitch-shift engine runs on the Web Audio API, no plugins or installs needed.
Shift as many files as you like, with no account, watermark or usage limit.
This free online pitch shifter changes how high or low an audio file sounds without speeding it up or slowing it down. It is useful for transposing vocals, testing a song in a different key, or creating a chipmunk or deep-voice effect.
Simply speeding up or slowing down playback changes both pitch and tempo together, like a record player running at the wrong speed. To change only the pitch, this tool uses a lightweight granular synthesis technique that resamples small overlapping fragments of audio and blends them back together.
The audio is broken into thousands of small overlapping windows called grains, each about a tenth of a second long.
Each grain is individually resampled at your chosen pitch ratio, which shifts its pitch while keeping its position in time fixed.
A smooth Hann window fades every grain in and out, and overlapping grains are summed and normalized to rebuild a continuous waveform.
Because each grain stays anchored to its original time position, the total length and rhythm of the audio are unaffected by the shift.
No. This tool keeps the original duration and tempo. Only the pitch moves up or down by the number of semitones you choose.
It uses a granular synthesis technique: the audio is split into many small overlapping grains, each one is resampled to shift its pitch, and the grains are blended back together with windowed overlap-add so the total length is unchanged.
For small shifts of a few semitones the result is usually smooth. Larger shifts, especially beyond an octave, can introduce a slightly grainy or metallic character, which is a normal trade-off of lightweight granular pitch shifting.
Any format your browser can decode, including MP3, WAV, M4A and OGG. The processed result is exported as a WAV file.
No. Decoding, pitch shifting and WAV encoding all happen locally in your browser using the Web Audio API. Your file never leaves your device.